A vacuum sealer built for sous vide cooking needs to pull at least 70KPA of suction and handle moist foods without stalling. The UK market now offers countertop machines from around £25 to over £245, so the real question is which features justify the extra spend for your kitchen and cooking style.
What to look for
01Suction pressure (KPA) and pump type
Suction pressure, measured in kilopascals (KPA), is the single most important spec for sous vide. You need enough vacuum to collapse the bag tightly around food so heat transfers evenly in the water bath. Anything below 60KPA risks leaving air pockets that cause uneven cooking. The Bonsenkitchen compact sits at the entry level, while the Mesliese 6in1 reaches 90KPA and the YASHE hits 80KPA with a 130W double pump. A double pump, as found on the YASHE, maintains consistent pressure across longer sealing runs, which matters if you are batch-cooking proteins for the week. Single-pump machines are fine for occasional use but can overheat during continuous operation. Check whether the machine specifies a cool-down interval; if it does, factor that into your workflow.
02Moist and dry food modes
Sous vide pouches almost always contain wet ingredients: marinated chicken thighs, fish fillets, or vegetables with butter. A machine without a dedicated moist mode will suck liquid into the sealing strip, contaminating it and producing a weak seal. The Mesliese 6in1 offers both dry and moist modes across its six functions, and the YASHE also includes moist and dry settings. The FoodSaver FFS005X goes further with a dedicated Delicate Food Mode, useful when sealing soft fish or pre-cooked items that would be crushed by full pressure. If you cook a variety of proteins, prioritise machines with at least two pressure settings. A single-mode machine is a false economy for sous vide.
03Bag compatibility and roll storage
Sous vide bags must be food-safe, BPA-free, and rated for the temperatures involved, typically 55°C to 90°C. Proprietary bag systems lock you into one brand's consumables; universal-roll machines give you more flexibility. The FoodSaver FFS005X has integrated roll storage and a built-in bag cutter, as does the Bonsenkitchen 5-mode machine and the YASHE. The Anysea rolls (15cm, 20cm, and 28cm widths, each 300cm long) are BPA-free and heavy-duty embossed, making them compatible with most countertop sealers. For sous vide, choose bags or rolls at least 15cm wide for single portions and 20cm or wider for larger cuts. Handheld sealers like the Geliking and Giraffyco use proprietary zip-style bags, which are convenient but limit you to the sizes included.
04Countertop versus handheld for sous vide
Handheld vacuum sealers, such as the Geliking rechargeable unit and the Giraffyco set with 30 reusable bags, are compact and easy to store in a 600mm kitchen drawer. They work well for marinating and short-term storage but are generally not suited to extended sous vide cooks because the zip-seal bags they use are less heat-stable than heat-welded pouches. Countertop machines create a proper heat-welded seal along the bag edge, which holds reliably at 60°C to 85°C for hours. If sous vide is your primary use case, a countertop machine is the correct tool. Handhelds are a useful supplement for prepping vegetables or marinating, not a replacement for a proper heat-seal unit.
05Seal width and double-seal reliability
A wider heat-seal strip produces a more robust weld, which is critical when a bag sits in a water bath for several hours. The YASHE features double heat seal, meaning two parallel weld lines are applied simultaneously, reducing the chance of a blowout mid-cook. Single-seal machines are adequate for freezer storage but carry more risk under sustained heat and pressure. Check the seal strip width in the product specs; anything under 5mm is marginal for sous vide. The FoodSaver FFS005X is a well-established countertop design with a proven sealing mechanism, and the Mesliese 6in1 includes two bag rolls and five pre-cut bags so you can start cooking immediately without a separate purchase.
Our top picks
Best for serious sous vide home cooksMesliese 6in1 Vacuum Sealer
The Mesliese 6in1 reaches 90KPA, the highest suction in this group, and covers six functions including dedicated dry and moist modes. It ships with two bag rolls and five pre-cut bags, so you can seal your first batch of chicken thighs straight away. The 90KPA figure means it pulls a tighter vacuum than most rivals here, which translates to better bag-to-food contact and more consistent results in a water bath.
Best for frequent batch cooking and long cooksFoodsaver Food Vacuum Sealer Machine with
The FoodSaver FFS005X combines integrated roll storage, a built-in bag cutter, and a Delicate Food Mode alongside its standard settings. It is the most established countertop design in this selection and is built for repeated daily use. The Delicate Food Mode is particularly useful for fish and pre-cooked items that would be crushed at full pressure, making it the most versatile pick for a household that sous vides several times a week.
Best mid-range pick with double heat sealYASHE Vacuum Sealer Machine
The YASHE runs an 80KPA double pump at 130W and applies a double heat seal, two parallel weld lines that significantly reduce the risk of a bag failing during a long sous vide cook. It also includes a built-in cutter and roll storage. At its price point, the double-seal feature is unusual and makes it a strong choice for anyone who has experienced bag failures with cheaper single-seal machines.
Best budget countertop sealer for occasional sous videBonsenkitchen Vacuum Sealer Machine
The Bonsenkitchen 5-mode machine offers five sealing modes, a built-in cutter, and bag storage in a compact footprint that fits neatly on a UK worktop. Five modes give you enough flexibility to handle moist proteins alongside dry goods. It is the most affordable countertop option here with roll storage included, making it a practical starting point if you are new to sous vide and not yet ready to commit to a premium machine.
Best handheld for marinating and short prepPortable Vacuum Sealer Set
The Geliking is rechargeable, so there is no need to be near a UK mains socket during prep. It comes with 10 reusable sous vide bags and is explicitly designed for sous vide cooking alongside food storage. It will not replace a countertop machine for long, high-temperature cooks, but for marinating steaks in a zip bag before a quick 55°C cook, it is a tidy, drawer-friendly solution.
Frequently asked
What KPA suction do I need for sous vide vacuum sealing?
For sous vide, aim for at least 70KPA. Lower pressures can leave residual air in the bag, creating pockets that insulate food from the water and produce uneven results. The machines in this guide range from around 80KPA to 90KPA for countertop models. Handheld units typically do not publish a KPA figure, which is one reason they are better suited to marinating than to extended sous vide cooks at high temperatures.
Can I use any vacuum sealer bags for sous vide?
No. You need bags that are explicitly rated for the cooking temperature you plan to use, typically 55°C to 90°C, and that are BPA-free. Standard zip-lock bags are not designed for sustained heat exposure. Look for heavy-duty embossed rolls or pre-cut bags from the machine manufacturer or a compatible third-party brand. The Anysea rolls in this guide are BPA-free and heavy-duty embossed, making them suitable for most countertop sealers used in sous vide.
Is a handheld vacuum sealer good enough for sous vide?
It depends on the cook. Handheld sealers use zip-style reusable bags rather than heat-welded pouches. Zip bags are less reliable under sustained heat and pressure, so they carry a higher risk of opening mid-cook during a long sous vide session. For a quick 30-minute cook at 60°C they are usually fine. For a 24-hour short rib cook at 72°C, a countertop machine with a proper heat-welded seal is the safer choice.
Do I need a moist food mode on my vacuum sealer?
Yes, if you are sealing anything for sous vide. Marinated meats, fish, and vegetables with butter or sauce all release liquid during vacuuming. Without a moist mode, the machine draws that liquid into the sealing strip, weakening the weld and potentially damaging the pump over time. Moist mode reduces suction speed near the end of the cycle to prevent liquid ingestion. It is a standard feature on the Mesliese, YASHE, and FoodSaver models in this guide.
What is a double heat seal and why does it matter?
A double heat seal applies two parallel weld lines across the bag opening in a single operation. If one weld line has a microscopic gap, the second line acts as a backup. For sous vide, where a bag sits submerged in water for hours, a failed seal means the food is ruined and the water bath is contaminated. The YASHE in this guide uses double heat seal, which is an uncommon feature at its price point and a meaningful reliability advantage over single-seal machines.
How wide should vacuum sealer bags be for sous vide?
For single chicken breasts or fish fillets, 15cm-wide bags are adequate. For larger cuts such as a rack of ribs, a whole duck leg, or a thick rump steak, use 20cm or 28cm bags. The Anysea rolls come in all three widths, each 300cm long, giving you flexibility to cut to the exact length you need. Avoid sealing very large cuts in undersized bags; a poor fit forces you to fold the meat, which creates air pockets and uneven cooking.