OVAL-Blog

Best Coffee Beans for Cold Brew: What to Look For and Why It Matters

You can have the right gear, the right ratio, and the right steep time — and still end up with cold brew that's flat, thin, or oddly bitter. Nine times out of ten, the problem is the beans. Bean ch...

Cold Brew Lemonade: The Refreshing Summer Coffee Drink You Need to Try

In 1840, French soldiers stationed at a fort in Algeria ran short on supplies and started mixing their coffee with cold water and lemon juice. That improvised drink — later named mazagran — spread ...

How Long Does Cold Brew Last in the Fridge? (And How to Store It Right)

You made a batch of cold brew on Sunday. It's Thursday. Is it still good? The answer depends on how you stored it — and whether you've mixed it with anything. Cold brew has a longer shelf life tha...

Decaf Cold Brew Coffee: Why It Tastes Better Than You Think

Decaf coffee has a reputation problem. For years it's been the thing people ordered when they had no other choice — bitter, flat, stripped of what makes coffee worth drinking. Cold brew is fixing t...

Best Glass for Iced Coffee: How Your Cup Affects Taste, Temperature, and the Pour

The glass you pour your iced coffee into isn't just a container. It affects how cold your drink stays, whether your hand gets wet from condensation, how the flavors come through, and — honestly — h...

How Long to Steep Cold Brew Coffee: The Complete Guide (12, 18, or 24 Hours?)

Twelve hours? Eighteen? Twenty-four? If you've searched "how long to steep cold brew coffee," you've already seen a dozen different answers — and most of them contradict each other. The confusion i...

Cold Brew Grind Size: The Exact Setting for Smooth Results

Grind size is the most common reason cold brew tastes bitter — and most people never think to check it. If you've made cold brew that came out harsh, over-extracted, or muddy, the grind is almost c...

How to Make Protein Coffee at Home (That Actually Tastes Good)

Protein coffee has officially taken over. With over 20 million TikTok posts about "proffee" and Starbucks launching its own protein coffee range in September 2025, this isn't a passing fad — it's t...

Cloud Coffee Recipe: How to Make the Viral TikTok Drink at Home

Cloud coffee is one of those drinks that looks too good to be real — a tall glass of iced coffee with a soft, frothy float sitting on top, pale and pillowy against the dark liquid underneath. It ta...

What to Add to Cold Brew Coffee: Flavors, Syrups, and Mix-Ins That Work

Cold brew is one of the easiest drinks to customize — its smooth, low-acid base holds add-ins well without the sharpness that can clash with hot coffee. The problem is that most advice for sweeteni...