A study in the Journal of Clinical Medical Research found that applying heat helps maintain both muscle strength and activity. The largest decrease in pain was observed immediately after heat application.
When using a hot water bottle, it’s useful to understand when to choose heat versus cold therapy. As a rule, opt for cold treatment for recent injuries and to reduce swelling, and choose heat for longer-lasting muscle discomfort, such as that from arthritis.
Knowing the top hot water bottle choices makes it easier to give sore muscles and chilly feet what they need. (They’re also handy for warming your bed on frigid nights.) Below is our roundup of six of the best hot water bottles you can buy online.
How we picked the best hot water bottles
We selected the hot water bottles included here based on customer feedback, material quality, and the manufacturers’ reputations. Bottles that scored below three stars, had designs prone to leaking, or came from dubious sources were excluded.
Healthline’s selections for the best hot water bottles
Best hot water bottle overall
Attmu Rubber Hot Water Bottle with Cover
- Price: $$
- Material: rubber
With a 4.5-star rating and nearly 12,000 reviews on Amazon, this bottle is a crowd-pleaser. It includes everything you need, such as a knitted sleeve available in seven colors, because why not customize?
Shop Now on AmazonBest value for the price
Samply 2 Liter Hot Water Bottle with Knitted Cover
- Price: $
- Material: rubber
While cheaper options exist, many lack the convenience and safety features offered by this model. The Samply 2 Liter Hot Water Bottle arrives with a knitted cover in several shades for comfortable handling.
Shop Now on AmazonBest large hot water bottle
Peterpan Hot Water Bottle with Cover, Extra Large
- Price: $$$
- Material: rubber
If you’re aiming for greater surface coverage, this extra-large bottle delivers. It is, however, the priciest choice on our list. Those wanting to soothe broader areas like the back or abdomen may consider it worth the investment.
Shop Now on AmazonBest latex-free hot water bottle
BYXAS PVC 1.5 L Hot Water Bottle
- Price: $$
- Material: PVC
Many bottles are constructed from rubber, which can be problematic for people with latex sensitivities. This model is made from PVC, which is odor-free and recyclable.
Shop Now at AmazonMost eco-conscious hot water bottle
Hugo Frosch 2L Eco Hot Water Bottle with Zipper Cover
- Price: $$$
- Material: sustainable thermoplastic
Many hot water bottles are made from PVC, which isn’t typically eco-friendly, or from rubber. Synthetic rubber is derived from petroleum, while natural rubber comes from trees, so sustainability arguments are mixed. That’s why we included this bottle from German brand Hugo Frosch, crafted from sustainable thermoplastic that originates from 90 percent renewable resources.
Shop Now at AmazonBest DIY hot water bottle
Nalgene 16oz Wide Mouth Tritan Bottle
- Price: $$
- Material: tritan
Backpackers have long used the trick of filling a water bottle with hot water and placing it in a sleeping bag on chilly nights. The same approach works at home and has the bonus of doubling as a drink bottle. Nalgene bottles also come in many colors and sizes.
Shop Now at NalgeneHow to use a hot water bottle
To prepare a hot water bottle:
- Boil water.
- Allow it to cool to a safe temperature.
- Fill the bottle via the spout.
Avoid using boiling water, as it can be hazardous and may weaken the seams of the bottle. Also, don’t rely on tap water that hasn’t been heated sufficiently; impurities could affect the bottle material.
Filling a bottle requires care because of the risks involved with hot liquids. It’s best to pour from a container with a spout, like a kettle. If you heat water in a pan, consider transferring it to a spouted vessel first.
Work slowly and deliberately through each step. If you do suffer a burn, follow these first-aid recommendations:
- Run cool water over the burn for a minimum of 20 minutes.
- Remove jewelry or clothing near the burned area.
- Do not try to take off anything that is stuck to the wound.
- Cover the area with a damp bandage or clean cloth.
People vary in their heat tolerance, but a simple guideline is whether the warmth feels comfortable. If you feel an urge to remove the bottle, the water is likely too hot.
Health professionals often recommend applying heat in 5-to-10-minute intervals, as often as feels comfortable. Alternating between heat and cold therapies may also be beneficial.
Alternatives to hot water bottles
Besides hot water bottles, electric heating pads are another option to deliver heat. They plug into the wall for continuous warmth and last longer without needing to boil water. Weighted heating pads are available for extra comfort.
You can also make a DIY heating pack or hot compress. A warm bath, soak, or shower can serve as an effective heat treatment, too.
Topical capsaicin creams, available over the counter, can provide pain relief by creating a warming or tingling sensation, though some users find it unpleasant.
Bottom line
Our selection of hot water bottles is a helpful starting point when looking for the right option. Heat therapy can be an effective home remedy for easing aches and pains.
If you frequently rely on a hot water bottle for a persistent problem you haven’t yet discussed with your physician, consider scheduling an appointment to review it with them.
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