An oyster is only as good as the water it grew in, and the record that follows it.
Most oysters on a Malaysian table arrive with no history. No one can tell you which bay they came from, how long they purged, or whether anyone tested the water that week.
We built Ocean Tide Ventures to close that gap. Between our partner in Sabah and us on the Peninsula, every stage is accounted for: the microalgae that feed the spat, the racks the farmers work, the tanks the oysters purge in, and the sealed, batch coded box that leaves our chill room. Every oyster we sell can be traced back to the raft it grew on.
Where to find us
Most people meet us at a night market.
Before the wholesale orders and the restaurant accounts, there is a folding table, a bucket of ice and someone shucking to order under a market light. That is still where most people taste a Malaysian oyster for the first time.
We keep doing it because it is the honest test. There is no menu description to hide behind when the person is standing in front of you watching you open it.
Markets and pop-ups
Shucked to order with lime, Thai sauce and cheese sauce. Follow us on TikTok. That is where we announce where the stall will be.
Take-home packs
Styrofoam box with ice, shucked or whole, from 15 pieces. Order on WhatsApp and collect or have it delivered.
Private events
We bring the shucking station, the staff and the ice display to your venue. From 50 pieces.
Geram kan awak? 😋 . Awak cari je 📍AZK ROTI CANAI, Ampang 📍 Family mart, Desa Pandan . Dari 9 malam - 12 tgh malam . Kita jumpa malam ni okay ! 😋 . @AZK Roti Canai #osytermurah #oysterhidup #oysterdesapandan #oysterazkroticanai #oysterampang
Alhamdulillah disebabkan kaedah steam, semua orang boleh experience oyster kami. Untuk miss ni, dia enjoy our Thai sauce. what about you guys? 🫣 #oystermalaysia #tiramkl #oystersabah #tiramfresh
Jom ramai ramai datang malam ni! Kami akan buka di Desa Pandan 30Dec ni dari jam 8.30 hingga 11 malam ni! Meh rasa oyster kami bersama condiment condiment yang kami telah sediakan! #oceantideventures #oystersabah #oystermalaysia #tiramkl
OYSTER DI ROSYAM MART - Siapa yang tak sempat nak singgah ke booth kami, boleh tengok vid short kita semalam 😙 #oysterfresh #oyster #tiramfresh #tiram
Both of Malaysia's commercially important native oysters are grown for us. They are not interchangeable, and we would not want them to be.
Iredalei
Crassostrea iredalei
The small one. Deep-cupped, firm, and clean on the finish, a slow grower off our sheltered Sabah bays. The oyster to hand someone who says they don't like oysters.
Size
2.5 to 3 inch
Water
Sheltered coastal bays
Profile
Mineral, clean, restrained
Best served
Raw on the half shell
Belcheri
Crassostrea belcheri
The big one. Grown fast and full in the warm, plankton-rich water off Sabah, with a creamy weight that stands up to heat, butter and fire.
Six stages across two companies, and one unbroken record. The split is deliberate, and the chain is not broken by it.
01
Hatchery
Sea Life
Sea Life Aquaculture hatches the spat at Tawau, culturing the microalgae that feed the larvae. Controlling the seed is what makes everything downstream predictable, which is why our partner owns that step rather than buying seed in.
02
Nursery
Sea Life
Spat no bigger than a fingernail are graded by hand and moved into nursery trays, checked, cleaned and thinned until they are strong enough for open water. They then go out to the contract farmers with the racks and baskets to grow them in.
03
Grow-out
Contract farmer
Rack and raft lines worked by contract farmers on four sites across Sabah. Baskets are turned, thinned and graded by hand until the shells are ready. The equipment and the standard arrive with the spat, so husbandry does not vary site to site.
04
Harvest
Contract farmer
Pulled by hand on the tide, sorted on the boat and back on shore within the hour. Sea Life buys the harvest back at an agreed rate, so a farmer carries the work and not the market.
05
Depuration
Sea Life
Oysters purge in filtered, ultraviolet sterilised seawater at the Tawau hatchery, following Malaysian research and FAO guidance. They leave the tanks clean, closed and graded, and they leave with a batch code.
06
Cold chain
Ocean Tide Ventures Handover at KLIA
Chilled, sealed and flown to KLIA on the weekly morning run, where we take delivery. From the airport to the counter the chain is ours, and every box still carries the code it was given in Sabah.
Where the oysters come from
Four contract sites, two more coasts to come
Everything we sell today comes out of Sabah, grown on four contract farm sites supplied and bought back by Sea Life Aquaculture, our exclusive partner, and purged at their hatchery at Tawau. Melaka and Setiu are in development, and we would rather name them honestly than imply we are already in the water.
The sites
Contract farm site
Partner hatchery and depuration
In development
The four Sabah contract farm sites Ocean Tide Ventures sources from, with the Sea Life Aquaculture hatchery and depuration base at Tawau, and Melaka and Setiu marked as in development.The four Sabah contract farm sites Ocean Tide Ventures sources from, with the Sea Life Aquaculture hatchery and depuration base at Tawau, and Melaka and Setiu marked as in development.
Oysters are filter feeders. They concentrate whatever is in the water, which is exactly why depuration is not optional, why no box leaves here without its traceability record, and why consignment orders are batch tested before they ship.
IoT sensors track salinity, temperature, tide and rainfall across every site. When conditions move outside range, harvesting stops before there is a problem.
02
Controlled depuration
Filtered, UV-sterilised seawater, run to protocols drawn from Malaysian research and FAO guidance. Time in the tank is measured, not estimated.
03
Traceability record
Farm, line, harvest date and depuration record travel with every box, so any oyster can be walked back to the water it grew in. Consignment orders are batch tested, and the result is issued with the delivery.
The published ledger
Published batches
18
Pieces received
5,286
Pieces lost
471
Mortality
8.9%
Mortality published for every batch in the ledger, ordered by batch number.
8.9% ledger average
Two batches record more sold than received. The discrepancy is published on the batch page.
Oysters are one of the few animal proteins that improve the water they are farmed in. They need no feed, no freshwater and no antibiotics, a single adult filters hundreds of litres a day, and the reef structure the racks create gives juvenile fish somewhere to hide.
Alongside oysters we supply spat, seaweed and microalgae to other Malaysian growers, and work with research institutions on triploid development. The goal was never to be the only oyster farm in Malaysia. It was to make it possible for there to be many.
By the numbers
What vertical integration buys you
72 h
Farm to table
One 8am run a week from Tawau to KLIA, landing by midday and collected the same afternoon. Farm to a Klang Valley table in 72 hours or less.
30 %
Fewer harvest shutdowns
IoT water sensors and predictive analytics let us stop harvesting before conditions turn, not after.
RM 4,000
Monthly household income
What a B40 household on the buy back programme can earn, RM 3,000 to RM 4,000 a month.
100 %
Traceable batches
Every box leaves with its farm, line and harvest date attached.
From the water
Field notes
Harvest reports, food-safety explainers and what we are learning as we go.