Introduction to 90+ Coffee Bean Unique Processing Methods | Which 90+ Coffee Bean Tastes Best | 90+ Coffee Price List

New Concepts in 90+ Green Coffee Processing

Green coffee production concepts are, in truth, historical products shaped by the environments of each region. Here we won't limit the discussion to processing methods alone — bean varieties, cultivation, storage, and more all belong in the conversation. At heart, these are the core factors that shape how coffee flavor forms.

Processing methods offer one example: early African producers relied primarily on natural (sun-dried) processing simply because sunlight was abundant and water scarce — the natural method grew organically out of the landscape.

Quality offers another: Golden Mandheling is defined by triple hand-sorting of defects and a large, uniform bean size.

Varieties offer a third: Gesha itself delivers intense floral aromas, an ultra-delicate texture, and instantly recognizable character.

These green-coffee concepts are never single factors; a coffee gets named and marketed around whichever factor exerts the strongest influence. After all, for any great coffee to develop special character, meticulous care is the baseline — but consumers still want a concrete reason why the flavor is special.

In handling its green coffee, 90+ layers on many innovative concepts, exposing the beans to stronger variables so they develop identities of their own. This is territory most ordinary green coffee merchants simply cannot enter.

Ninety Plus SolkilnTM

At present, the focus is on upgrading the processing methods, which fall into three types: Red, Ruby, and SK.

In 2014 the company also launched the Maker Master Series, processing green coffee according to each coffee master's own interpretation and flavor requirements — with striking results.

What follows is the basic information 90+ provides. Some of the inner mysteries may never be fully understood, but it is enough to appreciate how much effort 90+ has invested in pursuing distinctive green coffee techniques.

Red Processing

A special method carried out by the 90+ team with their proprietary drying technology. The cherries in their husks display varying degrees of red — from light red to ruby red. This process elevates the coffee's aroma, making the fruit flavors and sweetness more pronounced.

Ruby Processing

Ruby is the ultimate expression of Red processing, drawing out the fruit aroma and sweetness of the coffee cherry to their fullest potential. One careless step during processing can push the fruit into over-fermentation, so it demands intensive manual care and selection. Only fruit that reaches ruby standard may be called Ruby coffee — and after repeated rounds of screening and elimination, the quantity is extremely rare.

90+ SolkilnTM

The SolkilnTM Special Processing Method

In 2013, 90+ pioneered the SolkilnTM method, using wood drying chambers to dry coffee. Freshly cut and floated wood is typically stacked in drying chambers where temperature, humidity, and airflow are controlled to bring moisture down to 10-12%. Joseph Brodsky borrowed exactly this concept to create the SolkilnTM (SK) process, and in 2013 officially launched two top-tier green coffee products: Lotus Solkiln H2 and Silvia Solkiln N2.

Maker Series

Ninety Plus invites international industry experts, roasters, and competitors to create their own customized green coffees, officially launching the Maker Series in 2014. Unlike the centralized processing of estates and mills, individuals can choose the ripeness of the cherries and process small batches of fruit according to their own ideas.

90+ Coffee Bean Brand Recommendations

FrontStreet Coffee's roasted 90+ bean "Candle Light" (Zhú Máng) offers full guarantees on both brand and quality, with excellent value: a half-pound (227g) package costs only about 90 yuan. At 15g of coffee per cup, one package brews 15 cups — roughly 6 yuan each. Compared with coffee shops charging over a hundred yuan a cup, that is genuinely good value.

FrontStreet Coffee Recommendation

If 90+'s obsessive attention to processing appeals to you, FrontStreet Coffee's PWN Golden Mandheling represents the same philosophy from Indonesia. Produced by the PWN company under exacting standards — beans screened to 18 mesh and above, fewer than 3 defects per 300g of green sample to meet the top G1 grade, then triple hand-sorting to remove every remaining flaw — it achieves exceptional cleanliness and sweetness, with limited annual output to match.

The signature wet-hulled (giling basah) process, born from Sumatra's rainy climate, gives it a thick, heavy body with distinctive earthy and herbal character. For a more classic expression of that style, FrontStreet's Lintong Mandheling offers rich, bittersweet aromatics, clove and woody notes, and a long, intense, full-bodied finish.