The first time you open a fresh wort kit you might be slightly underwhelmed. There's not much in the box. Compared to a tin extract starter kit — which often comes packed with sachets, syrup tins, additives and instructions — a fresh wort kit looks almost sparse. That's deliberate. The simplicity is the point. Here's exactly what's inside, what each component does, and what's not in the box for good reasons.
What you'll find when you open a kit
That's the inventory. Four components. Wort, yeast, instructions, packaging.
A fresh wort kit is genuinely just wort and yeast in a box. No tins, no sachets of "kit enhancer," no dry malt extract supplements. The brewery did the recipe work already — everything you need to ferment is in those two main components.
The wort itself: what's actually in those 23 litres
The pouch is the entire reason you're paying for a fresh wort kit. The 23 litres inside is, by weight, roughly:
That 11% sugar content is the headline. The yeast will eat most of those sugars during fermentation, converting them into roughly equal parts alcohol and CO2. The result is beer at about 4.5-5.5% ABV depending on the kit's starting gravity.
Within that, the actual ingredients that produced the wort:
- Malted barley. The base of the recipe. Different malt varieties — pale malt, crystal, Munich, oats — produce different colours, body, and base flavour. The malt bill is the brewery's chosen recipe for this style.
- Hops. Added during the brewery's boil. Provides bitterness, flavour and some aroma. The variety and timing of hop additions defines the hop character of the finished beer.
- Brewing water. Either local water adjusted to a target profile, or reverse-osmosis water built up to match the chosen style. Water chemistry affects clarity, mouthfeel and balance.
- Sometimes adjuncts. Some styles include rolled oats (for Hazy Pale Ales), wheat (for cloudy or hefe-style beers), or other grains. Always listed in the kit's recipe notes if applicable.
What's not in the wort: no preservatives, no colour additives, no flavour enhancers. Commercial fresh wort kits are typically made with the same ingredient list as professional craft beer.
The yeast packet: what it does and why this specific yeast
The 11g of dry yeast in the kit is what actually turns the wort into beer. Yeast cells consume the sugars in the wort and produce alcohol, CO2, and a range of flavour compounds (esters, phenols) that contribute to the beer's character.
Modern dry yeast strains contain 100-200 billion viable cells per 11g sachet — more than enough for a 23-litre batch of moderate-gravity beer. No rehydration is needed. You simply sprinkle the yeast on top of the wort in the fermenter, give it a gentle swirl, and seal.
Why this specific yeast? Different yeast strains produce different beer characters even on the same wort. A clean American ale strain produces a neutral, hop-forward profile. An English ale strain adds soft fruit esters. A Hazy NEIPA strain enhances tropical fruit character through biotransformation with dry hops.
The yeast that comes with a fresh wort kit is chosen by the brewery to complement the recipe. You can substitute a different yeast if you want a different beer character (we cover this in our customising a fresh wort kit guide) but the supplied yeast is the safest, most predictable result.
For more on yeast generally, including the difference between dry and liquid options, see our dry vs liquid yeast guide.
What's not in the box (and why)
The contents of a fresh wort kit are minimal because everything else you need for brew day is either equipment you own or consumables you already have. Specifically not included:
- Fermenter. You already have one, or you're buying a separate starter setup. Fresh wort kits assume your fermenter is ready.
- Sanitiser. Reusable across many brews. You buy a bottle once and it lasts years.
- Hydrometer. Owned by the brewer, reused across batches.
- Bottles, caps, capper, bottling wand. Bottling equipment owned by the brewer.
- Priming sugar. Not added until bottling day. Comes from your sugar drawer or homebrew shop. A 500g bag of dextrose covers 3-5 batches.
- Dry-hop pellets. Not included unless you bought an add-on pack. Most fresh wort kits ship as the stock recipe; customisations are optional purchases.
This separation — consumables in the kit, reusables owned by the brewer — is deliberate. You pay for the wort and yeast each batch (because they're consumed) but not for equipment that you already have (because you'd be paying for it again every time).
Fresh wort kits are wort and yeast in a box. That's it. The brevity is the value: everything else, you already have.
Why so little packaging compared to other kits
If you're used to tin extract starter kits with their multiple sachets and tins, a fresh wort kit can feel deliberately minimal. There's a reason.
Tin extract kits often include extras like "kit enhancer" sachets (essentially dry malt extract powder), bittering hop additions in their own packets, separate finishing hop sachets, and sometimes flavouring additives. These are needed because the tin itself is just concentrated malt syrup — the brewer has to assemble the recipe by adding these supplements to make a complete beer.
A fresh wort kit's wort is already a complete recipe. The brewery already added the right proportion of malt, the right hop schedule, the correct water profile. There's nothing for the brewer to add to "complete" the recipe — it's already done. The minimal kit contents reflect that the work has been done elsewhere.
For a deeper comparison of these two kit types, see our fresh wort vs kit beer article.
Storage of the kit before brewing
The wort pouch needs to be refrigerated until brew day. Fresh wort is shelf-life sensitive — it's still essentially unfermented beer wort, and warm conditions accelerate flavour degradation and (rarely) microbial growth. Typical guidance:
- Refrigerate between 2-6°C from the moment you receive the kit
- Use within 6-12 months from the production date printed on the pouch
- For best quality, brew within 4-8 weeks of receiving the kit
The yeast sachet should also be refrigerated to maintain viability. It doesn't strictly need to be in the same fridge as the wort, but it's convenient to store them together.
For more detail on storage timelines and what happens to fresh wort over time, see our fresh wort kit shelf life guide. For the brew-day process once you're ready to use everything in the kit, see how to brew from a fresh wort kit. For a broader overview of what fresh wort kits are, see our complete fresh wort kit guide.