Plastic waste from the kitchen sink adds up quickly, especially through disposable dish soap bottles and detergent pod wrappers. Cutting back doesn't require a full sustainability overhaul: swapping to a solid dish block, a large refill carton, or plastic-free dishwasher tablets can reduce what you throw away while keeping the dishes clean.
How we choose
Below are eight useful products that address the sink and dishwasher in different ways. They range from a fragrance-free solid dish block and bulk liquid refills to certified dishwasher tablets, so you can pick the format that fits your kitchen routine and storage space.
Our 8 Picks
No Tox LifeDISH BLOCK - Free of Dyes and Fragrance - Zero Waste Dish Soap
What it is
A solid, fragrance-free dish-washing block that replaces bottled liquid dish soap.
Why it's worth it
The DISH BLOCK is a solid, unscented bar that replaces a plastic bottle of dish soap. The brand states it is ultra-concentrated and cleans in all water types, including hard water, so it is well suited to zero-waste kitchens. You control the dose by rubbing a wet sponge on the block, which makes it easy to use more for greasy pans and less for quick rinses.
Caveat
As a bar, it needs a dry ledge or draining dish and won't refill an existing pump bottle.
ECOLEAF EcoLeaf Washing Up Liquid 1ltr - 6 Pack
What it is
A 6-pack of 1-litre Ecoleaf washing-up liquid bottles with a concentrated formula.
Why it's worth it
This is a bulk pack of six 1-litre bottles, so it suits households that get through a lot of washing-up liquid. The brand describes the concentrated formula as low-temperature friendly, which makes it a useful option for cooler quick washes. Decanting into smaller bottles means you replace one large pack instead of buying single bottles each time.
Caveat
Six full 1-litre bottles take up storage space and are heavy to lift from a high shelf.
BLUELAND 100% Plastic-Free Dishwasher Detergent Tablets, 60ct, Free & Clear | Eco-Friendly Dishwashing Pods, Cuts Grease & Stuck on Food, Rinses Clean for Streak-Free Shine, Fully Dissolves, Septic Safe
What it is
A 60-count box of plastic-free dishwasher detergent tablets.
Why it's worth it
The 60 tablets come in plastic-free packaging, so there are no pod wrappers to throw away. The brand states the formula lifts 48-hour baked-on food and includes rinse-action ingredients for streak-free shine, and it is listed as septic-safe and microplastic-free. It is a good fit for households that want a tablet with built-in rinse aid.
Caveat
Tablets must be placed in the main dishwasher dispenser, so they won't help if you rely on a pre-wash cycle without adding detergent.
EcoverClassic Dishwasher Tablets 25 Citrus Fragrance Tablets 500g
What it is
A 25-count box of citrus-scented dishwasher tablets.
Why it's worth it
These multi-action tablets are designed so you don't need a separate rinse aid or dishwasher salt, according to the brand. The 25-count box is compact and well suited to smaller kitchens or as a reserve box. The citrus fragrance is meant to leave the dishwasher smelling fresh after the cycle.
Caveat
The citrus scent may be too noticeable for households that prefer unscented dishwasher products.
CleancultDish Soap Liquid Refill (32oz, 1 Pack) - Plant Based Cleaning Power - Dish Soap that Cuts Grease & Grime - Free of Harsh Chemicals - Uses 90% Less Plastic - Lemon Verbena
What it is
A 32-ounce liquid dish soap refill in paper-based packaging.
Why it's worth it
This 32-ounce refill uses a paper-based carton that the brand says contains 90% less plastic than a standard bottle. It is a good fit for anyone who already has a reusable dish soap bottle and wants a Lemon Verbena-scented liquid to pour into it. The refill format means you keep the original squeeze bottle rather than buying a new one each time.
Caveat
You need a separate reusable bottle because the carton has no pump or nozzle.
ATTITUDEDish Soap Refill, EWG Verified, Plant-Based & Vegan Dishwashing Liquid, Naturally Derived, Citrus Zest Scent, 67.6 Fl Oz
What it is
A 67.6-fluid-ounce bag-in-box dish soap refill.
Why it's worth it
The bag-in-box refill holds 67.6 fluid ounces, which the brand says is about 2.8 times their standard 23.7-ounce bottle at a lower cost per wash. This makes it well suited to busy kitchens where the sink gets used several times a day. The formula is listed as plant-based and vegan, and the outer cardboard is recyclable.
Caveat
It is a large refill, so it makes sense only if you have storage space by the sink or in a cupboard.
Grove Co.Dish Soap, 3 x 16 fl oz Refills, Lemon & Eucalyptus | Plastic-Free; Refill format; Natural Fragrance; Removes Stuck on Food; 98% plant-based ingredients
What it is
A pack of three 16-fluid-ounce dish soap refills in aluminum and paper packaging.
Why it's worth it
This set of three 16-ounce refills is packaged in aluminum and a recycled Kraft paper box, removing plastic from the purchase. The brand states the formula removes 48-hour stuck-on food and says it is made with 98% plant-based ingredients. The lemon-eucalyptus scent and ready-to-pour format make it a good fit for households switching multiple cleaning products at once.
Caveat
The three-pack is a larger upfront purchase than a single refill, and each refill still needs a reusable dispenser.
Branch Basics Dishwasher Tablets - 60 Ct | Plastic-Free Dishwasher Pods | Fragrance-Free, Human-Safe Dishwasher Pods Replacement | Delivers a Powerful Clean Without Harsh Chemicals
What it is
A 60-count box of fragrance-free, plastic-free dishwasher tablets.
Why it's worth it
These 60 dishwasher tablets are PVA-free and biodegradable, according to the listing, so they address the plastic-film issue common with pods. They are EWG Verified, MadeSafe Certified and Leaping Bunny Certified, which gives a useful level of third-party review for a fragrance-free household. The box is a good fit for anyone who wants certified, unscented dishwasher detergent.
Caveat
This is a premium-priced tablet, so it costs more per load than basic dishwasher detergent.
How to choose
How to choose the right plastic-free dishwashing and detergent refills for the kitchen sink
Takeaway
These eight products show that lower-waste dishwashing can fit different routines: one solid block, several refill sizes, and dishwasher tablets that skip plastic wrappers. Start with the format that matches how you use your sink and how much storage you have. A single swap is a practical step, so you don't need to change everything at once.
