The single question that decides whether you should buy a tank or stick with 8g chargers is this: how many charges do you actually get, and what does each serve cost? This guide does the maths so you can pick the format that wastes the least money. (For a plain-English overview of the formats themselves, see cream chargers vs canisters vs tanks — here we focus purely on quantity and cost.)
How Many Charges Are in Each Size?
A “charge” is roughly the gas in one standard 8g cream charger — enough to whip a small batch of cream. Here’s what each tank size gives you:
| Format | Approx. charges | Best suited to |
|---|---|---|
| 8g cream charger | 1 (one small batch) | Occasional home use |
| 1L tank | ~25–30 charges | Regular home cooks, mobile bartending |
| 3.3L tank | ~80–100 charges | Cafés, dessert bars, caterers |
| 4.4L–4.6L tank | ~120 charges | High-volume venues & events |
Put simply: one 3.3L tank replaces roughly 80–100 disposable 8g chargers, and a 4.4L tank around 120. That’s the whole reason busy kitchens switch to tanks.
Why Tanks Win on Cost Per Charge
Single 8g chargers are convenient, but the cost per serve adds up fast once you’re whipping more than the occasional dessert. A tank front-loads the cost into one purchase, then delivers dozens of charges at a much lower price each. The more you whip, the bigger the gap:
- Light use (a few serves a week): 8g chargers or a 1L tank are fine — you won’t get through a big tank before it’s worth it.
- Steady use (daily café service): a 3.3L tank is almost always cheaper per serve than buying chargers by the box.
- Heavy use (events, weekend rushes): a 4.4L tank gives the lowest cost per charge we stock.
You can compare live per-unit pricing across sizes on our nitrous oxide cylinders and large nang tanks pages, and the cheapest per-charge deals are usually our bundle multi-packs.
How to Work Out What You Need
A quick way to size your order:
- Estimate serves per week. Count how many whipped-cream or foam serves you make.
- Match to a format. Under ~20 a week → 8g chargers or a small tank. 20–100 → a 3.3L. Over 100 → step up to 4.4L.
- Buy in bundles if you go through tanks regularly — the per-tank price drops on multi-packs.
Does a Bigger Tank Always Save Money?
Not if you can’t use it. Nitrous oxide is best used fresh, and an opened tank is meant to be worked through, not stored half-full for months. Buy the size you’ll realistically get through in a reasonable window — for a home cook that’s often a 1L or a single 3.3L, while a busy venue will clear a 4.4L easily. Matching size to actual throughput is where the real saving is.
Get Your Tanks Delivered Across Melbourne
Whichever size works out cheapest for you, NangsBoy delivers it across Melbourne in 10–15 minutes in the CBD and around 30 minutes to the suburbs, with late-night and weekend service. Check your fee and ETA on the delivery page, or browse every size on the shop page. Pay by cash, card, or PAYID — all sales are 18+ for culinary use.
Frequently Asked Questions
How many charges are in a 3.3L nang tank?
Roughly 80–100 standard charges, depending on your dispenser and recipe — equivalent to around 80–100 disposable 8g cream chargers.
How many charges are in a 4.4L tank?
About 120 charges, which is why 4.4L–4.6L tanks give the lowest cost per serve for high-volume venues and events.
Is a nang tank cheaper than buying 8g chargers?
For regular use, yes. A tank costs more upfront but delivers dozens of charges at a far lower price each, so the per-serve cost is well below buying 8g chargers individually. For very occasional use, chargers can still make sense.
What size tank should a café buy?
The 3.3L tank is the professional standard for café and dessert-bar use. Step up to 4.4L for high-volume venues, events, or weekend rushes.
Can I get nang tanks delivered in Melbourne?
Yes — NangsBoy delivers every tank size across Melbourne in 10–30 minutes, with late-night and weekend service. Order from our shop and check your ETA on the delivery page.
