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How to Crumb Coat Cakes (and Why it’s Important)

July 29, 2020 · In: Cake Basics

In the cake making process, you might be tempted to skip ahead to your final coating of frosting after you fill and stack your cake layers. If you’re a perfectionist though (like I am, to a fault), it’s so worth it to go the extra mile and crumb coat your cake. Not only will this prevent crumbs from getting into your final layer of frosting, it also helps to create a stable foundation for your final layer of frosting. In fact, if you’ve ever wondered how to get a super smooth buttercream finish, crumb coating is one of the essential steps. 

how to crumb coat a cake

If you’ve never heard of crumb coating a cake, it simply means frosting a thin layer of buttercream all over your cake after it’s been filled and stacked. Here’s a quick video I shot of the process before I walk you through the steps below:

Want to see more Cake Basics videos like this one? Head to my YouTube Channel to see the growing collection. You’ll also find tons of cake recipes and decorating videos to inspire you and broaden your skill set – be sure to hit the subscribe button so you never miss a new one!

Why Crumb Coat?

There are two main reasons why you’d want to crumb coat your cake: 1) catching any loose crumbs that might want to make their way into your final layer of buttercream and 2) creating a smooth, even surface and ensuring your cake is level for your final layer.  

why crumb coat cakes

But it’s not enough to simply crumb coat your cakes. Chilling your cake after crumb coating is what glues all those pesky crumbs down and helps the entire structure set into a firm, sturdy foundation. It’s a step I never miss when making cakes. 

What Type of Frosting is Best for Crumb Coating? 

You can use any type of frosting for crumb coating your cake – basically whatever you’re planning on using for your final layer of frosting. If you need some recommendations, my Basic Vanilla Buttercream is the perfect consistency for both crumb coating your cake and adding your final layer of frosting, so feel free to use that if you’re in need of a go-to vanilla buttercream recipe.

Buttercream recipe for cakes crumb coat

If you’re looking for more buttercream flavors to try, be sure to browse my Buttercream Recipe Collection – any of those will work great! 

How to Crumb Coat Your Cake

To crumb coat your cake without getting any crumbs in your batch of frosting, you’ll want to start by adding about one cup of that frosting into a small bowl. This is what you’ll use to crumb coat instead of dipping your spatula in and out of the larger bowl of frosting. Place your filled and stacked cake on a turntable. This is the turntable I’m using – it has a built in anti-skid section under my cake board that makes it extra easy to frost a cake on!

when to crumb coat a cake

Start by frosting a thin layer of frosting on the top of your cake and smoothing it down with an angled spatula. 

how to frost a cake
why crumb coat a cake

Next, add a thin layer of frosting all around the sides of the cake and use an icing smoother to get the sides smooth and level. Basically hold the icing smoother at a 45 degree angle towards you while you rotate the turntable and scrape off the excess onto the edge of your bowl. Be sure to fill in any patchy areas with more buttercream and repeat the process of smoothing and scraping until you’ve got a thin, yet level crumb coat. 

how to crumb coat cakes
crumb coating a cake
purpose of crumb coating a cake

You’ll notice that a frosting ā€œcrownā€ has formed around the top edges of your cake, which is what you want to see. Using a clean angled spatula, swipe those edges toward the center of the cake to create sharp edges all around the top. 

crumb coating cake tutorial

When your cake is looking level and covered in a nice, thin crumb coat, pop the whole thing (turntable and all) into the refrigerator to chill for at least 30 minutes.

how to frost a cake crumb coat

Like I mentioned previously, chilling your cake will make the buttercream firm, essentially glueing down any crumbs within the crumb coat and creating a stable foundation for your next layer of frosting.

Next Steps

After refrigerating for at least 30 minutes, you’re ready to move on to your final layer of frosting. If you’re short on time though, it’s perfectly fine to refrigerate a crumb coated cake overnight. Even though the crumb coat layer of buttercream is thin, it helps preserve the cake layers beneath and keep everything moist and fresh. 

what is a crumb coat on cake

Do keep in mind that the longer the amount of time between baking your cake layers, decorating them, and serving them, the less fresh your cake will be. A typical timeline for me looks like:

  • Day 1: Bake cake layers + make buttercream
  • Day 2: Fill, crumb coat, frost and decorate the cake 
  • Day 3: Photograph and serve the cake

It’s perfectly fine to split up ā€œDay 2ā€ into two separate days though: filling and crumb coating one day, frosting and decorating the next. This will split the timeline into four days between baking and serving, but the cake will remain fresh. I do have an upcoming Cake Basics post detailing all my best tips for making cakes ahead and planning things out so you avoid the pressure of baking, decorating, and serving on the same day, so stay tuned!

Want more Cake Basics? Head here to see all of the posts and learn the methods of caking I’ve come to love over the years. I’m cheering you on every step of the way!

By: Whitney Ā· In: Cake Basics Ā· Tagged: buttercream cakes, cake basics, cake timeline, crumb coat, crumb coated, crumb coating, frosting a cake, vanilla buttercream recipe, wilton

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Reader Interactions

Comments

  1. Angel says

    August 4, 2020 at 2:34 am

    Loving these posts, keep them up please, they are just so awesome!
    Just wondering though, doesn’t really apply to this post, but whenever I bake cakes I don’t have the problem of them sinking, I have the problem of them rising alot in the middle! And then when I go to level the cake, there is not a very high layer, as most of it is in the ‘hump’ that has been cut off! Any tips/tricks would be awesome please&thanks!

    Reply
    • Whitney says

      August 4, 2020 at 8:00 pm

      Hi Angel! That’s interesting that the cake is rising so much in the middle for you. I wonder about trying baking strips on your pans? I’ve never tried them myself but I hear they help your layers bake more evenly: https://amzn.to/3i9GSMm

      Reply
    • Lacey says

      November 5, 2020 at 4:32 pm

      Hi I would say your temperature is up to high on the oven

      Reply
  2. Shannon says

    August 6, 2020 at 4:10 am

    Really love your posts!

    I noticed that you make the buttercream on day 1 and decorate on day 2. Do you store the buttercream in the fridge from when it’s made to when it’s used? And if so, do you need to do anything to ‘defrost’ it before using it on day 2?

    Reply
    • Whitney says

      August 6, 2020 at 11:10 am

      Hi Shannon! I always store the buttercream in the refrigerator in an airtight container overnight (or up to two weeks), then let it sit out for a few hours on the day I need it to bring it back to room temp. Then, I mix it on low in my stand mixer to bring it back to the right consistency for crumb coating/frosting.

      Reply
    • Alexandra says

      September 3, 2021 at 10:29 pm

      Hi Shannon,

      Thanks so much for these tips it’s great !!!
      I just had a quick question – if I wanted to decorate a cake and leave it in the fridge overnight before serving it the next day will I need to wrap it in anything to prevent it from drying out ?

      Reply
  3. Theresa Breen says

    September 6, 2020 at 11:51 pm

    Hi, I am loving your cake basics and have read them all!!

    I used your vanilla cake recipe, in 6in cake pans with bake even strips, both greasing spray and baking paper. I cooked them for about 8 minutes longer. They cracked at the top, one felt as if it was going to fall apart from the top as I took it out of the pan, and one broke off at the bottom.

    Do you have any idea what could have happened? They feel very moist.

    Reply
    • Whitney says

      September 9, 2020 at 2:31 pm

      Hi Theresa! I’ve never tried bake even strips.. I’m wondering if you baked the cakes for too long though? Eight extra minutes seems like a lot of extra time for this recipe, which would explain why the cake fell apart. Next time I would test at 32ish minutes by inserting a toothpick into the center of the cake and making sure it comes out clean. That’s when it’s done. Then cool the cakes in the pan for about 5 minutes before turning them out to cool completely. Hope that helps!

      Reply
  4. Frances says

    October 11, 2020 at 3:17 am

    Hi Whitney,
    Can I crumb coat with any other buttercream except vanilla buttercream

    Reply
    • Whitney says

      October 12, 2020 at 7:27 am

      Hi Frances! You can crumb coat with any buttercream. I always use whatever I’m using as the final buttercream finish to crumb coat the cake.

      Reply
  5. Cynthia says

    October 11, 2020 at 10:40 am

    Won’t your cake sweat if u pop it in a fridge without covering?

    Reply
    • Whitney says

      October 12, 2020 at 7:25 am

      Hi Cynthia! I never have a problem with my cakes sweating in the refrigerator, but then again I don’t live in a particularly humid environment.

      Reply
  6. Azanda says

    October 23, 2020 at 12:30 am

    Hi Whitney my spongy cakes when ever I refrigerate them weather after crumb coat or after decorating them and store them in the fridge they dry out im not to sure if it’s because I put them longer in the fridge for crumb coat or storing pls advise me what am I doing wrong.

    Reply
    • Whitney says

      October 23, 2020 at 6:58 am

      Hi Azanda! The only things I can think of are either 1) you’re storing the cakes in the refrigerator too long or 2) the cakes are too dry to begin with. I recommend only storing a crumb coated cake or fully decorated cake overnight for maximum freshness.

      Reply
  7. Bri says

    October 26, 2020 at 6:23 pm

    Can you freeze a cake/tiers after you crumb coat it? If so, what’s the best way?

    Reply
    • Whitney says

      October 28, 2020 at 9:57 am

      Hi Bri! I have never frozen a cake before, but I know other bakers do it all the time! You can certainly freeze a crumb coated cake but I’m not sure what the best method of wrapping/preserving it will be since I’ve never tried it before.

      Reply
  8. Moe says

    November 3, 2020 at 7:22 am

    hi! on day one what do you do with the cakes until day 2? do yo put them in the fridge? thank you!

    Reply
    • Whitney says

      November 4, 2020 at 11:26 am

      Hi Moe! After baking the cakes and cooling them to room temperature I wrap them in plastic wrap and keep them at room temp until day 2. Hope that helps!

      Reply
  9. Jami says

    November 5, 2020 at 6:53 am

    Can I leave the crumb coated cake out overnight in a cake box? I don’t have room in my fridge. I want to crumb coat it today and add the rosettes tomorrow. Thanks!

    Reply
    • Whitney says

      November 5, 2020 at 10:10 pm

      Hi Jami! You can store it at room temperature overnight. I like to store mine in the refrigerator mostly because it preserves the shape of the cake and creates a firm surface for decorating. Hope that helps!

      Reply
  10. Lauren says

    November 6, 2020 at 7:46 pm

    Hi Whitney! Do I have to cover the crumb cake in the fridge if decorating overnight? Thank you!

    Reply
    • Whitney says

      November 7, 2020 at 10:53 pm

      Hi Lauren! You don’t have to cover the crumb coated cake, as even the little amount of buttercream coating the cake will lock in the moisture.

      Reply
  11. Whitney says

    November 18, 2020 at 10:31 am

    Hey Whitney! I was wondering if you cover your crumb coated cake in plastic wrap before putting it back in to chill?

    Reply
    • Whitney says

      November 19, 2020 at 2:39 pm

      Hello fellow Whitney! I do not cover my crumb coated cake in the fridge. The crumb coat of buttercream acts as the perfect barrier to keep all the moisture inside the cake and keep it fresh.

      Reply
  12. Malia says

    November 26, 2020 at 3:26 pm

    Hi!
    Very very novice baker here – your videos and blogs are so helpful – read them all!
    How soon after the cakes come out of the oven can you do the crumb coat?
    Also is there a good way to transfer the cake from the turntable to a serving plate?
    Thanks!

    Reply
    • Whitney says

      November 30, 2020 at 7:45 am

      Hi Malia! So happy these videos and blogs have been helpful! You’ll need to wait until the cakes are fully cooled before adding a crumb coat, which can take 2-3 hours. A good way to tell if the layer is cooled (after a few hours) is to pick the layer up and place your hand on the bottom to test the temp. If there’s any warmth at all, the cake needs more time to cool. And to transfer the cake to a serving plate, I always chill the decorated cake for at least 30 minutes to ensure the buttercream is nice and firm, then run a warm metal spatula around the bottom to create a clean separation between the cake and the turntable. At that point you should be able to lift the cake with a spatula underneath and move it over to the serving plate. With the buttercream so cold, it shouldn’t mess up the finish if you touch the cake.

      Reply
  13. Matt says

    January 7, 2021 at 8:30 pm

    Hey Whitney,

    Thanks for all your tips!! I’m still in the learning curve phase of trying to get smoothe edges and frost well.

    2 questions: when letting the crumb coat chill in the fridge or freezer for about 30 minutes, can you keep the buttercream out on the counter? Will it still be an ok temp, or should you chill it down a little bit before you work with it again to do the final frosting?

    And 2nd question – I was working with a cream cheese-based frosting the other day, and really having a hard time trying to get it as smooth and perfect looking as buttercream. Do you find that that’s the case? I’ve also heard from other cake-bakers that a lot of it does indeed have to do with the quality of the frosting you’re working with, and specifically using the right buttercream… (and I hadn’t found that much research on if cheese cream-based frostings are that great to work with and/or could be more problematic. )

    Thank you for your time, Whitney!!

    Reply
    • Whitney says

      January 12, 2021 at 8:48 pm

      Hi Matt! Excited for you to learn more about frosting cakes! To answer your questions: 1) Yes, you can keep the buttercream out on the counter covered with a paper towel or cloth 2) this depends on the temperature of your kitchen. If it’s above 73ĀŗF it may end up too soft/runny as the butter starts to soften/melt. In this case you will want to place the buttercream back into the fridge for about 5-10 minutes before rewhipping it with your stand mixer and continuing on with the frosting process. 3) Yes, cream cheese buttercream is trickier to work with because it’s stickier than other buttercream. I do have a cream cheese buttercream recipe that I love for frosting cakes, so hopefully this one is easier to work with than what you’ve been working with: https://sugarandsparrow.com/lemon-cake-recipe/

      Reply
  14. Clare Deary says

    April 28, 2022 at 12:23 am

    Hi I am just wandering after crumb coating and leaving un the fridge overnight. Do you leave the crumb coated cake at room temperature fir a certain period of time before covering with fondant?
    Thank you
    Clare

    Reply
    • Whitney says

      April 29, 2022 at 8:18 pm

      Hi Clare! I don’t normally work with fondant these days, but when I did I would crumb coat the cake, refrigerate the crumb coat for at least 30 minutes, frost the cake with smooth buttercream, refrigerate the cake again until the frosting was firm to the touch, then cover in fondant. Hope that helps!

      Reply
  15. Liz says

    May 21, 2022 at 1:03 pm

    Hi. Love your website helpful tips. I’m hoping to make a cake for my sons wedding which is on a Saturday. Could I defrost the cake and crumb coat it on the Wednesday in order to transport it? We’re travelling on Thursday, but I could do the final coat when we arrive on Friday. What do you think?
    Liz

    Reply
    • Whitney says

      May 22, 2022 at 8:47 pm

      Hi Liz! That should totally work as long as you don’t think it will be too stressful to frost the cake there. I would place the crumb coated cake in a cooler with ice packs for the transport if you can – that way the layers won’t shift around if it gets too warm and jostled by the ride. Hope that helps!

      Reply
  16. Ardith says

    April 11, 2023 at 10:46 am

    Your tips and recipes are fantastic! What do you do with the crumb coat frosting you scrape off? Is it garbage because it might have crumbs in it?

    Reply
    • Whitney says

      April 11, 2023 at 1:20 pm

      So happy my tips have been helpful, Ardith! Since I start with about 1 Cup of frosting in a separate bowl for the crumb coat, I don’t have much (if any) left over after crumb coating. If I do, I’ll usually spread it onto some cake scraps for a little snack šŸ™‚

      Reply
  17. Paige says

    July 29, 2023 at 10:04 pm

    Thank you! One question, have you ever had your buttercream not want to stick to the cake in all places? Yes I eventually got it covered but it was tough because it was moving around.

    Reply
    • Whitney says

      August 8, 2023 at 8:51 am

      Hi Paige! If the buttercream isn’t spreading easily, that usually means it’s a little too thick. Here’s a blog post I wrote on buttercream consistency that explains how to thin it out. This will make the buttercream much easier to work with: https://sugarandsparrow.com/buttercream-consistency/

      Reply

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