Friday , 3 April 2020

KOI Castella Eliquid Review

Who likes a cake-flavoured ejuice? Me. I like a cake-flavoured ejuice. In fact, I like anything cakey; eating it, vaping it, smelling like it. If someone made a perfume that tasted like cake, I’d probably wear it. So, you can imagine how happy I was when I received a bunch of new eliquids through my door that followed the baking theme. (Very.) All the thanks in the world to ecigarettedirect for my care package of desserty goodness.

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(There are affiliate links in this review, meaning, at no additional cost to you, I will earn a commission if you click & make any purchases. Please see Disclaimer for more details.)

This is the KOI Castella eliquid review but there are three other flavours on offer, all of which sound equally as delightful. I have so many juices/brands here to review, some of which I’ve had for a long time, but I just can’t stop myself reaching for the cakey delights. Those minty and summer-fruit numbers are always overlooked. I feel bad for them. 

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About KOI 

KOI Traditional Japanese Desserts are brought to you by the folks behind Element Eliquids, so you know it’s going to be a great range. Not all of the Element juices are my kinda thing taste-wise, but they are always packed with flavour and pretty true to taste. I’ve had my grumbles, especially that minty one … Frost, but they’re still a great eliquid company with some really tasty flavours on offer. 

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Just as the name would suggest, KOI Traditional Japanese Desserts eliquids are based on traditional Japanese desserts: 

  • Castella – Old Fashioned Yellow Cake
  • Sakuramochi – Black Cherry Ice Cream
  • Yuzu – Lemon Meringue
  • Yatsuhashi – Cinnamon Rice Pudding 

A bottle of 50ml 0mg eliquid is £12.50 [from ecigarettedirect] and you DO NOT get the nicotine shot included.

The last one is going to be lots of fun on video … Those who watch my videos know that me and the word ‘cinnamon’ do not get along so well. Cimmamum. Cinnamonom. Cimomonom. Whatever.

KOI Castella Eliquid Review

Castella was the first of the KOI by Elements Eliquid bunch I added the nic shot to and then vaped. It was a tough decision though; all four flavours are flavours I would go out of my way to buy. (There’s the cake fiend again.) It doesn’t say whether or not you should/need to steep them before you start vaping, so I didn’t leave mine to steep at all. I made it, shook it, used it. 

Devices Used

Smok Helmet Tank + 0.6-ohm coil @ 30-35 watts, depending on the box. I’ve been using the Vapor Storm Subverter box mod (despite saying I wouldn’t actually use it that much), and the Jac Vapour Series-B DNA 75W too. I also gave it a shot in the Jac Vapour Series-S22 tank + battery together, but I still don’t love the device. Sorry, JV. 

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I couldn’t find details of the VG/PG ratio on the bottle or box, and there aren’t any details listed on the UK Element Eliquids website either. 10/10 annoying. I took a peek at the ecigarettedirect website (who sent me the juices) and finally found the deets. 

KOI by Element Eliquids are 80% VG 20% PG. 

I should have just looked at the ecigarettedirect website in the first place. Facepalm. 

My nic shot, on the other hand, was 70% VG 30% PG, which brings me to a question: Does it matter if the juice is 80/20 but you add a 70/30 nic shot? Nothing bad happened as I vaped it so I’m assuming not? 

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I don’t actually know what traditional Japanese yellow cake tastes or smells like, because I’ve never had it. Please don’t ask me if this juice is true to taste … An expert on traditional Japanese desserts I might not be, but an expert at eating cake and being super critical of cake-flavoured eliquids, on the other hand, I absolutely am. And trust me when I tell you this one’s a good one. 

What does Castella by KOI smell like? 


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Cake with a hint of something, admittedly, but I wasn’t sure of what off the bat. It had a kind-of twang to it; not bitter or zesty, but a twang nevertheless. It was at this point that I opened my laptop, pulled up Google, and started looking for some idea of what the eliquid should taste and smell like … and then accidentally spent 45 minutes watching hilarious cat videos on YouTube. Oops. 


I did vape and taste away as I chuckled to myself over cats who can’t cat, and I realised what that twang was I mentioned previously — honey. I know honey is a sweet addition, but there’s an almost yoghurt-like acidity/sourness hidden away in Castella. It’s not screamingly obvious, nor does it ruin or detract from the original cake base; it just hangs around in the background and peeks its head up every now and then, adding some extra depth. Honestly, it’s actually pretty bloody lush. 

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I did eventually leave the cat videos alone for long enough to learn what traditional Japanese yellow cake is — a 4-ingredient cake that combines eggs, sugar, bread flour, and, you guessed it, honey! I’m guessing it’s one of those jiggly cakes I keep seeing in Facebook videos?

I was a little worried that cake on its own, which is essentially what Castella is, would be like those fruity-cake numbers that are all talk and no action — a bit of blah cake and an almost hint of strawberry or whatever. The liquid isn’t like that at all. Quite the opposite, in fact. The cake flavour stands alone perfectly well by itself (with the honey twang, obviously), without tasting like it’s missing the main component, usually, the fruit. Smooth, creamy, and sweet, I could almost be eating a real cake. It’s delicious. Absolutely delicious. 

Throat Hit & Vapour

I don’t really have a lot to say here, to be honest. Although a bit hearty to start with, which I assume is down to newly-mixed juice because initial gruffness happens a lot with newly-mixed juices, KOI Castella soon lightens up. I like it a lot, getting plenty of vapour from all tank/box mod/coil combos I used, and getting a decent throat hit too. It’s not scratchy or gruff, but it is there and it’s very satisfying. 

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KOI Castella Eliquid Review – Conclusion

Castella by KOI is definitely not the same as every other cake-based eliquid on the market. I think it has a lot more flavour to start with, and although I don’t know what Japanese yellow cake actually tastes like, I think the unique blend itself is amazing. Be mindful that I didn’t let this juice steep at all too. I just made it, shook it, and vaped it right away. If it has this much flavour right now, immediately after mixing it, I can only imagine how great it’s going to be in a few weeks. Not that it’s going to last me that long. I’ve done over half of the big bottle already!

The only ‘bad’ thing I can think to say about the liquid is that it is quite sweet. Not like that Carrot Cake juice I once tried, but sweet enough that I can see a few people finding it too sickly. Not me, though. I’ll happily take it allllll off your hands if you don’t like it ?

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Would I buy KOI Castella eliquid again? This has been one of the tastiest eliquids I’ve tried in a while, and it’s totally one I’ll miss when I run out. Castella is 100% on the buy-again list — it’s a real stand-out juice for me!

Would I recommend KOI Castella eliquid to you? I absolutely would, but if you’re not the biggest fan of quite sweet flavours, I imagine this one will be too sweet. You wouldn’t exactly buy a cake juice if you didn’t like sweet stuff though, right?

Buy Castella by KOI from ecigarettedirect here.

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*Prices & information correct at the time of writing.

HONESTY POLICY: These KOI by Element Traditional Japanese Dessert liquids were sent to me by ecigarettedirect. I did not pay for these products. I was not paid for my review and I will not be paid for my review. All opinions are mine and in no way influenced by the brand/manufacturer. Please see Disclaimer for more details.

AFFILIATE HONESTY: I will earn a small percentage in commission when you buy using the ecigarettedirect links or banners on this page. Thank you so much for reading & watching my reviews, and for your continued support of! xo [Please see Disclaimer for more details.]

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