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Customer reviews for LEGO Harry Potter Cauldron: Secret Potions Classroom Building Set, 652 pc. for
LEGO Harry Potter Cauldron: Secret Potions Classroom Building Set, 652 pc.
4.3 out of 5 stars
stars23 ratings23 reviews
  1. 5 stars78% (18)
  2. 4 stars0% (0)
  3. 3 stars4% (1)
  4. 2 stars4% (1)
  5. 1 star13% (3)

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Showing 11-20 of 23 reviews
Jan 31, 2026
Olive
3 out of 5 stars review

Verified Purchase

Incomplete piece

The set piece was not complete. Plus some pieces were packed in different bags, bagged incorrectly

Review from LEGO
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reply from LEGO® Customer Service

Thanks for letting us know about this! That definitely shouldn't be the case. Could you please get in touch with us at LEGO.build/Service-BV so we can get to the bottom of this? If you're missing some pieces, you can pick these up at LEGO.build/BricksPieces-BV.

Jan 30, 2026
Susie
5 out of 5 stars review

Verified Purchase

HP Cauldron

Awesome product as always by Lego! Would definitely recommend

Review from LEGO
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Jan 12, 2026
Darroo
5 out of 5 stars review

Verified Purchase

Cauldron

Nice build. So glad the Hogwarts shield was NOT a sticker.

Review from LEGO
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Jan 13, 2026
HAMMIE SHARK
5 out of 5 stars review

Verified Purchase

Fun

This was a fun harry potter set It had lots of parts and the mini figures are cool......

Review from LEGO
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Apr 24, 2026
Dantes
1 out of 5 stars review

Trash build with no support

This build. Was easy enough but it hinges are so weakly evolved that they break at the easiest of movements. Truly disappointing as most of the Harry Potter Legos are building bases now. Was looking forward to a change from the norm.

Review from LEGO
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Feb 6, 2026
Em L
5 out of 5 stars review

Harry Potter fan will love this!

[This review was collected as part of a promotion.] Perfect gift for a Harry Potter fan who enjoys a Lego challenge. It has a total of 652 pieces so it takes a while to put together, but the fact that there's Lego inside of Lego (cauldron) is really quite cool.

Review from influenster.com
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Feb 20, 2026
SequoiaR
5 out of 5 stars review

Do This for Satisfaction and Accomplishment!

[This review was collected as part of a promotion.] I received this product for free in exchange for my honest review. I have never been so geeked about Lego...except for when I visited a Lego exhibit called The Art of the Brick. Even after visiting that, very cool, highly recommend, I hadn't really gotten my "Lego hands" dirty... not as an adult anyway...until this freaking awesome Harry Potter themed Lego set. I sat down, intending to spend only an hour playing with this and putting it together. I wasn't confident that I was going to sit there and really enjoy putting Legos together. The excitement for me was that it was Harry Potter, not so much that it was Lego. But I have to say that I was delighted in how enjoyable and satisfying putting the Legos together was. Of course, I love that it's Harry Potter. That's actually now more like icing and sprinkles on the cake, and the cake is Lego. Now, I think that part of the enjoyability of it for me was that I was building toward an end goal, I wasn't just playing with Legos and building my own stuff like my very young nieces and nephews. While I was putting it together, I released big sighs as I as I built, and when I was done I was proud and felt accomplished. And I'm not going to talk about how I finished it in one sitting (over an hour, but not more than 3). Even though I did. I just didn't realize how enjoyable Legos could be as an adult, how relaxing it could be, how stress relieving it could be, and how accomplished you could feel after putting something together that had over 250 instructions. After doing this, I want several more of the Harry Potter Lego sets. But, I think I would enjoy putting together other themed sets as well. I. Would. Highly. Recommend.

Review from influenster.com
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Feb 18, 2026
AnnM
5 out of 5 stars review

Love secret feature

[This review was collected as part of a promotion.] This Lego set is so far one of my favorites in the Harry Potter Lego collection. It looks like a regular potion cauldron that spins. BUT it has a secret classroom inside of it. So cool! It was easy to assemble. Lego bricks were well organized and instruction is clear. I really enjoyed it. Also, the set has an extra pieces of the smallest bricks which are helpful in case you lose or break some. The Lego Professor Severus Snape is so cute. Also, I was excited about Hogwarts Logo wasn't a sticker. The only sticker in this set is a poster in the classroom. Such a great addition to my Harry Potter collection. I am obsessed

Review from influenster.com
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Mar 9, 2026
TrishiaR
5 out of 5 stars review

Fun set to build

[This review was collected as part of a promotion.] I received this product for free from Lego and Influenster as part of an incentivized campaign in exchange for my honest review. This Harry Potter cauldron Lego set was super fun and easy to build! Thankfully the size isn't as big as I thought it would be , so it could fit perfectly on my bookshelf. I was able to complete the set in a few hours and had no issue with the materials, instruction manual, or building the set in general. It was super relaxing to build this set and I definitely would build another one when I have the chance to! The set is perfect for any Harry Potter fan, a reader, or a Lego fan.

Review from influenster.com
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Jan 7, 2026
CountessBubblyCarrot102
2 out of 5 stars review

Harry Potter

I love Harry Potter and Lego. I was missing pieces from the set. I only open one bag at a time and gently dump the bag on my table. I searched and I never found the pieces I needed. I didn’t lose them and I am always careful. I am very disappointed because I was so excited to build this set.

Review from LEGO
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