OVALWARE Airtight Cold Brew Iced Coffee Maker Pitcher (& Iced Tea Maker) with Spout, 1.5L/51oz Glass Carafe Review (2026)

What the Ovalware RJ3 includes

This is Ovalware's RJ3 cold brew pitcher, built around a 1.5 liter, 51 ounce carafe made from extra-thick borosilicate glass with a spout for pouring. The kit includes a removable stainless steel filter, described by the maker as an 18/8 laser-cut mesh filter, along with a stainless steel lid and a BPA-free silicone gasket that creates the airtight seal the product is named for. Ovalware markets it as a dual-purpose brewer for both cold brew coffee and iced tea, which is why it appears in cold brew tea maker comparisons even though the filter mesh is sized with coffee grounds in mind. The glass carafe is rated to handle temperatures from about minus 22 to 356 degrees Fahrenheit, and the maker states it is both microwave and dishwasher safe.

Brewing performance for coffee and tea

For cold brew coffee, Ovalware recommends about 110 grams, roughly 4 ounces or 21 tablespoons, of coarsely ground coffee steeped in the fridge for 12 to 18 hours, which lines up with typical cold brew ratios used by other makers. The airtight seal is meant to keep the batch fresh in the fridge without picking up other food odors, and the spout allows pouring directly from the carafe without needing to transfer the batch to another pitcher. For tea, the same stainless mesh filter can hold loose leaf tea, but because the mesh is cut for coffee grounds it is coarser than a dedicated tea infuser, so very fine cut black tea or rooibos can pass through the mesh or clog it unless it is coarser leaf tea or bagged first.

Build quality and glass durability

The extra-thick borosilicate glass construction is a meaningful upgrade over the thinner soda-lime glass used in some cheaper cold brew pitchers, since borosilicate resists cracking from rapid temperature swings, such as going from a hot dishwasher cycle to a cold fridge. The stainless steel filter and lid add durability compared to plastic components used on some competing pitchers, and the airtight silicone seal is a wear part that should be checked periodically for cracking or loss of elasticity, since that seal is what keeps the batch fresh and odor-free. Being made of glass, the carafe is also the main handling risk in the kit, and it needs to be set down carefully and kept away from crowded fridge shelves where it could be knocked loose.

Fitting it into a fridge and daily routine

At 1.5 liters, or about 51 ounces, this pitcher makes a meaningful batch of cold brew or iced tea that can last a household several days, and its shape is designed to sit in a standard fridge shelf or door rather than needing a large dedicated space. The handle noted by the maker makes it easier to lift and pour a full carafe one-handed, which matters once the pitcher is filled with liquid and heavier than it looks empty. Because the filter is removable, the same carafe can be used to store the finished cold brew concentrate or tea without the grounds or leaves still steeping inside, which helps control strength once the initial steep time is done and the batch reaches the flavor the user wants.

Who this pitcher suits

This is a solid pick for someone whose main use case is cold brew coffee who also wants the option to brew iced tea occasionally, since the coffee-first filter design is the more capable half of its dual-purpose claim. Tea drinkers who plan to use it primarily for loose leaf iced tea should expect to use coarser leaf tea, a tea bag, or an added infuser rather than relying on the stock filter for finely cut blends. The borosilicate glass and stainless hardware make it a durable choice compared to plastic cold brew makers, and the airtight seal and spout are genuine conveniences for anyone brewing in the fridge regularly. Careful handling of the glass carafe is the main ongoing consideration for anyone choosing this pitcher.

Frequently asked questions