Cutting through grease without reaching for a plastic bottle means picking the right eco dish soap for the job in 2026 — sheets, tablets, and scrub tools each handle baked-on fat differently, and this list ranks six real options against actual washing-up grime.
- Simply Living Eco Dishwasher Sheets is the best eco dish soap for grease on baked-on pans in 2026 — Buy.
- WABLU Dishwash Naked Wonder Tabs® dissolve in hot water for hand-washing greasy tins at £7.99 for 40 tabs.
- Coconut Kitchen Scourers cut scrubbing time on cast iron without scratching — pair with soap, don't replace it.
- Composable Kitchen Sponges handle daily washing-up but wear fast under heavy grease — Consider, not a standalone fix.
- Washing soda is the backup move for burnt-on fat when soap alone won't shift it.
Why this matters
Most "eco dish soap" searches in 2026 assume a bottle of liquid exists somewhere plastic-free and just as strong as the supermarket stuff. It doesn't quite work that way. The plastic-free kitchen category has split into dissolvable sheets, hand-wash-friendly tablets, and scrub tools that do half the grease-cutting before soap even touches the pan.
That split matters because grease behaves differently depending on the tool. A roasting tin with three days of baked-on fat needs something that dissolves fast in hot water and gets agitated by a scourer — not a gentle everyday sponge. Regn's own eco dish soap range and supporting guides are built around that distinction, and the ranking below reflects it rather than picking one bottle and calling it done.
How we ranked these
Six criteria decide the order: grease-cutting speed on baked-on fat, how fast the product dissolves or lathers in hot water, whether it needs a scrub tool alongside it, plastic content in the packaging, cost per wash where pricing is disclosed, and whether it holds up on cast iron and stainless without scratching. Every pick below gets tested against those six points, not just one.
None of these are liquid dish soap in a bottle — that format barely exists plastic-free in the UK market in 2026. The real competition is between dissolvable sheets, tablets adapted for hand-washing, and the scrub tools that make either one work faster.
The ranked list
1. Simply Living Eco Dishwasher Sheets (32-pack, unscented)
The everyday grease-cutter. These are built for a dishwasher but dissolve fast enough in a sink of hot water to work as a hand-wash soap substitute — drop one sheet into the water, let it break down for 15-20 seconds, then wash as normal. Unscented means no fragrance fighting with food smells, and 32 sheets per pack means this isn't a one-off trial.
On a genuinely greasy roasting tin, this cuts through fat in one soak rather than three refills of a normal sink. Verdict: Buy — this is the eco dishwasher sheets pick for anyone who wants one product doing two jobs.
2. WABLU Dishwash Naked Wonder Tabs\u00ae
The tablet doing double duty. WABLU's dishwasher tablets are formulated for machines, but the 40-pack at \u00a37.99 works dissolved in a bowl of hot water for hand-washing greasy pans — the same trick that's turned dishwasher tablets into a legitimate hand-wash category by 2026. One tablet per full sink, crushed slightly to speed dissolving.
The catch: it's not designed as a squeeze bottle, so measuring out a full tablet for a single mug feels wasteful. For batch washing-up after a roast dinner, it's efficient. Verdict: Buy if you're washing a full sink at once; Regn's guide on using dishwasher tablets for hand-washing dishes walks through the dilution ratio.
3. Coconut Kitchen Scourers
The scrubber that does half the soap's job. Grease doesn't lift on contact — it needs agitation, and a coconut fibre scourer breaks down baked-on fat on cast iron and stainless steel without scratching the surface the way a plastic scourer eventually does. Pair one with either pick above and grease-cutting time drops noticeably on the second wash.
This isn't a soap replacement; it's the tool that makes the soap work faster. Verdict: Buy as a pairing purchase — the coconut scourers hold their shape through repeated hot-water soaks better than sponge-only setups.
4. Composable Kitchen Sponges (3-pack)
The daily-use budget pick. For regular washing-up — plates, cutlery, glasses — these composable sponges do the job without any grease-specific advantage. Three sponges in a pack means rotation is built in, which matters because compostable materials break down faster under constant heavy grease than synthetic sponges do.
On baked-on grease specifically, expect to reach for a scourer instead. Verdict: Consider — good for the 80% of washing-up that isn't greasy, weak on the 20% that is. The composable kitchen sponges are a sensible everyday swap, not a grease specialist.
5. Multi-Use Dish Brush (bamboo)
The one you'll actually use every day. A bamboo-handled dish brush with a replaceable head covers the middle ground between a scourer and a sponge — enough bristle stiffness for grease, gentle enough for non-stick. It won't out-perform a coconut scourer on cast iron, but it's faster for routine plates and bowls.
Verdict: Consider as a second tool alongside sheets or tablets, not a first purchase if grease-cutting is the priority.
6. Washing soda
The heavy-duty backup, not the daily driver. When grease has been baked on for days rather than hours, soap alone — plastic-free or not — sometimes isn't enough. Washing soda dissolved in hot water loosens fat that soap and scrubbing haven't shifted, which is why it shows up as a specific fix rather than a general dish soap.
Verdict: Hold as a backup for the worst cases, not a replacement for a daily eco dish soap routine.
Comparison table
| Pick | Best for | Format | Verdict |
|---|---|---|---|
| Simply Living Eco Dishwasher Sheets | Baked-on grease, hand-wash | Dissolvable sheet, 32-pack | Buy |
| WABLU Dishwash Naked Wonder Tabs\u00ae | Full-sink batch washing | Tablet, 40-pack, \u00a37.99 | Buy |
| Coconut Kitchen Scourers | Cast iron, stainless steel | Fibre scourer | Buy (pair) |
| Composable Kitchen Sponges | Daily plates and glasses | Sponge, 3-pack | Consider |
| Bamboo Multi-Use Dish Brush | Everyday middle ground | Brush, replaceable head | Consider |
| Washing soda | Days-old baked-on fat | Powder | Hold |
Where to buy
- Buy sheets and tablets in the largest pack size available — per-wash cost drops noticeably and plastic-free packaging means fewer separate deliveries in 2026.
- Pair a scourer or brush with your soap pick from the same order rather than buying them separately later — grease-cutting speed depends on both working together.
- Skip anywhere selling "eco" liquid dish soap in a plastic bottle with no refill option — that defeats the plastic-free point the whole category is built on.
“Dishwasher tablets dissolve faster in hot water than bar soap on a roasting tin — that's the whole trick for 2026's hand-wash tablet trend.”
FAQ
What's the best eco dish soap for grease in 2026?
Simply Living Eco Dishwasher Sheets rank highest for baked-on grease when dissolved in hot water before hand-washing. Coconut Kitchen Scourers paired with either sheets or tablets cut scrubbing time further on cast iron and stainless steel.
Can dishwasher tablets be used for hand-washing dishes?
Yes, tablets like WABLU Dishwash Naked Wonder Tabs® dissolve in a sink of hot water and work as a hand-wash soap substitute. Crush the tablet slightly first to speed up dissolving for a single sink load.
Is eco dish soap as effective as regular dish soap on grease?
Dissolvable sheets and tablets match regular liquid soap on most grease when combined with a scourer or brush for agitation. The gap shows up on days-old baked-on fat, where washing soda often does the heavy lifting instead.
How much does eco-friendly dishwasher tablets cost per wash?
A 40-pack of WABLU Dishwash Naked Wonder Tabs® costs £7.99 in 2026, working out to roughly 20 pence per wash. Sheet packs of 32 land in a similar per-wash range depending on pack size bought.
Do coconut scourers scratch non-stick pans?
No, coconut fibre scourers are softer than plastic or metal scourers and don't scratch non-stick coatings under normal use. They're firm enough for cast iron and stainless steel grease but gentle on coated surfaces.
What removes baked-on grease when soap doesn't work?
Washing soda dissolved in hot water loosens grease that's been baked on for days when soap and scrubbing alone haven't shifted it. It's a backup step, not a daily dish soap replacement.
Are compostable sponges good for greasy pans?
Composable sponges handle daily washing-up well but wear out faster than synthetic sponges under heavy, repeated grease. A scourer is the better daily-use pairing for genuinely greasy cookware.
Is plastic-free dish soap actually plastic-free packaging?
Dissolvable sheets and tablet packs sold in 2026 typically ship in cardboard or compostable film rather than plastic bottles, which is the main draw over liquid soap. Check the specific pack for material details before buying.
One last thing
The detail that changes results most isn't the soap — it's water temperature. Every pick on this list, sheets, tablets, or soda, works faster in genuinely hot water than lukewarm, and skipping that step is the most common reason grease-cutting eco dish soap gets written off as "not as strong" as bottled liquid.
