Material Matters for Coffee Brewing Equipment!

You probably own some coffee brewing equipment at home and brew with them everyday, but how well do you know about the different materials found in these gadgets? Some common materials are glass, stainless steel/metal, and plastic, which are also found in Ovalware's Cold Brew Makers. Here are two quick questions about some of these materials:

1. Do you know the difference between borosilicate glass and other glass? Why do we choose this particular glass to make our Cold Brew Maker?

2. Do you know the different stainless steel grade, for example, the 18/8 304 that we make our Cold Brew Maker with?

If you have no idea what we are talking about here, no worries, just read on.


ovalware specialty coffee blog cold brew maker borosilicate glass

This particular kind of glass contains 15% of boron trioxide, an ingredient that alters glass behavior by making it thermal shock resistant at a maximum of 170°C (about 340° Fahrenheit.) Traditionally used in high-end restaurants, laboratories, and wineries for its purity and durability, borosilicate glass allows you to pour boiling hot water into The Cold Brew maker without worrying about shattering or cracking.

Through superior resistance against chemicals and acid degradation - there’s no more need to worry about harmful chemicals and unwanted metallic or plastic tastes seeping into your brew. Just FYI, this is also the type of glass for storing nuclear waste, and tends to last a lifetime.

It is also dishwasher safe, allowing you easy and convenient cleaning. 


ovalware specialty coffee blog cold brew maker 18/8 stainless steel 304

'Stainless steel (s/s) isn't completely stainless, but only stain less easily compared to other types of metal. Stainless steel contains at least 10.5% chromium, and the percentage increases with different grades.

Ovalware chose 18/8 304 grade s/s, containing 18% chromium and 8% nickel, to make most of the brand's coffee equipment, giving the products beautiful and clean finishes, and is easy to clean. The 304 s/s can withstand corrosion from most oxidizing acids, making it an ideal and common material option for kitchen appliances.


Apart from the finest laboratory grade materials, Ovalware's Cold Brew Maker is air-tight, meaning you can leave your cold brew concentrate in your fridge for up to 2 weeks without losing those sweet notes of subtle flavor so desirable fresh from your beans.

When you do need to brew, the cold brew maker makes it so easy in 2 steps, simply fill the Cold Brew Maker with beans and water, and let it sit in the fridge overnight to experience a simple cup of pure joy in the morning! Just imagine how productive and confident you would be if you started every morning with a fresh, clear mind, sharp and ready to tackle your day ahead.

Not only will you enjoy a smoother, less bitter, and less acidic coffee (compared to traditional hot brewing), but you’ll find yourself sipping a crisp, powerful swirl of quality, tasty coffee you can always depend on to get you up and running in no time. Cold Brew coffee is is higher in caffeine content and thus more powerful than regular Hot Brewed Coffee.

So yes, in less time and less effort, you can now invest in yourself properly and tackle your days ahead with the power and grit you need to conquer any day, morning, or project ahead. Learn More...

See, taste, and experience for yourself how beautiful and tasty your mornings can truly be. After all, it’s these little things that make us smile :)

Hope you enjoyed this one!
Wishing You A Great Cup of Coffee,

- Your Ovalware Crew


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